Means for embossing.



.l. H. MATTHEWS.

MEANS FOR EMBOSSING.

APPLICATION men FEB. 16. 1915.

2 SHEETSSHEET 1.

WITNESSES INVENTOR W Mam,

' COLUMBIA PLANooRAPH 50.,WASl-Imu'roN, n. c.

HY'MA'TTHEW MEANS FOR EMBOSSING.

APPLICATION FILED FEB. 16, 1915.

1,145,251. Y Patented July 6,1915.

2 SHEETS-SHEET 2- WITNESSES COLUMBIA PLANoaRAPH CO.,\VA5HINGTON. D c.

JAMES MATTHEWS, or PITTSBURGH, PENNSYLVANIA, AssIeNoRQTo JAs H. MATTHEWS 86700., or PITTSBURGH, PENNSYLVANIA, A ooRroR TIoN or A PENNSYLVANIA.

MEANs FOR EMBossINe.

- 7 Application filed. February 16, 1915. serial N 0. 8,496.

To all whom it may concemr. Be it lmown that LFJAMES citizen of the United States, and residing in the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented ordiscovered new and useful Improvements in Means for Embossing, of which the following is aspecification.

My invention comprises new and useful improvements in embossing presses intended for stamping or forming raised characters in blanks or plates of metal or other material.

More particularly my present invention relates to changeable dies for said presses and in means for presenting the same con veniently to the. hand of the operator so that the dies may be quickly changed, thus.

shortening the intervals between impressions and preventing the mounting of the wrong dies in the press.

In the accompanying drawings, Figure l is a front elevation of an embossing press embodying my improvements; ig, 2 is an enlarged detail of the same in section along the line II-II in Fig. 1; Fig. 8 is a perspective of. one of the changeable dies dis-- mounted; Fig. & is a perspective'onsmaller' scale of amodifiedform of the changeable die; Fig. 5 is an enlarged front elevation ofthe die magazine with the dies stored therein, and Fig. 6. is atop plan view of the same.

The following is a detailed'description of the drawings, referencebeing first had to Figs. 1, 2and 3: A is a stamping or.em-'

bossing press of conventional form provided with a bed B and a ram O. The bed and ram'are shown provided, for the sake of illustration, with'coacting male and female dies 1 and 2 at eitherend'ofthe press, the changeable dies, as will be later described, being shown interposed between the same.

The dies land 2 form no part of the present changed at least in part after each impres- MATTHEWS, a

sion. or pairs .of impressions. For these varying characters, I provide my changeable dies which will .now proceed to describe. In a line parallel with and adjacent tothe Patented July 6.1915,;

front edgeof the bed B, I provide said'bed g'o wlth a series of upwardly extending studs 3 and in a. parallel line adjacent to the rear edge of bed: B a correspondingv series of headed pins .4 upon which are mounted slid mg collars? 5. whose upper diameter is en-" larged to form shoulders 6. Coiled springs 7 are mounted onsaid pins between the heads thereof and the collars 5 to resiliently depress the latter.

The removable dies areconstructed asfollows: 8 is the base plate having its forward end bent downwardly to form the handle 9 and 10 is a hole inplate 8 engaging one of the studs 8 when the die is mounted in the the plate 8, as byrivets 11, said dieplat e being; preferably wider than saidbase plate but the die'portion' of plate D beingwithin the lateral limits of said base plate. .ifl'llh'e" top plate 12 bears on its lllldGffflCG cheap;

per or male'die plate. E. The said top plate.

is connected to the base plate .8 by means of a pair. of pivoted .together.brackets l3 and 13 which are respectively riveted'or otherwise secured to said base and top plates.*

The top plate 12 is extended'rearwardlyand provided at itsendjwith' a notch 14,: which engages the collar 5 under its shoulder 6 on one of the pins 4. 'The changeable die is" readily mounted. on. the bedB by first! ens gaging the notch 14 under the shoulder 16 of one of the springpins 4 and snappingthe hole 10 down over" the correspondingstud 3., i

The die may be removed fror'nz'th'e bed-by lifting'the'plate 8 until the stud3ris disen gaged from thehole 10 and" drawing the die forward until the notch. l l'is disengaged y from the collar 5. The effect of the spring 7 is to hold thedie open, .asishown: in Fig. 2

when the ram G is raised so that "the blanks the ram is depressed, the spring pressedand the die is forced closed...

It is evident that the dies'may be (111 the next to the left the tens die; the neXtto the left the hundreds die; and the fourth the 11 I ickly; changed on'the bed of'the press as required. In embossing numbers. on blanks theifirst die to the right in Fig. 1 isthe unit die;

thousands die. By increasing the number of positions for dies any number may be embossed. Where a series of numbers running say from one to nine thousand, nine hundred and ninety-nine, are to be impressed, the 1 die is first mounted on the units position and the desired number of impressions made; the 2 die is then substituted and so on until the number ten is reached when the 0 die is mounted on the units position and the 1 die on the tens position. In a similar manner the dies are changed and added to the hundreds and thousands positions until the highest number above named is reached.

In Fig. 4t I show a modified form of changeable die wherein the lower and upper dies are mounted on the ends of a loop 12 of spring metal whose lower end is prolonged to form the handle 9 and provided with a hole 10 to accommodate the stud 3 of the bed B. The rear end of the loop may be notched as at 14* to engage the headed pin 4: to hold the die removably in place in the bed. In this case the die is normally held open by the resiliency of the loop 12 and the spring 7 is not required.

One of the chief merits of my changeable dies is the facility with which they may be interchanged to produce the required num her on a series of blanks and it is therefore highly important that the dies be presented to the hand of the operator in such a manner that no sorting will be required but they may be picked up and inserted in the press without examination. For this purpose, I provide a magazine or case F which is secured to the press in a convenient position, as shown in Fig. 1. Said magazine is in the form of a metal boX having a solid back, sides and bottom, and divided by vertical partitions 15 in compartments (6, b, c, d, etc, equal in number to the number of changeable die positions on the bed of the press. Thus compartment a is for the units dies; compartment 6 for tens dies, &c. The fronts of the compartments are partially closed by the wing partitions 16 leaving a central vertical slot of sufficient width to permit the ends or handles 9 of the dies to protrude. The bottoms of said wing partitions are cut away as at 17 so that the bottom die in a compartment may be readily withdrawn forwardly permitting the superimposed dies to drop down in the compartment.

The dies are arranged in the compartments in numeral series from the bottom upward so that as a die is withdrawn at the bottom, the die of the next higher number takes its place and is next withdrawn, the dies as they are removed from the press being inserted in the top of the compartment, so that the necessary rotation is maintained. To facilitate the withdrawal of the dies from the compartments, the magazine is preferably inclined forward, as shown in While my removable dies are primarily intended for the class of work above referred to, they may be used for any character of embossing with equal facility.

It is evident from the foregoing that by means of my invention the process of embossing is greatly simplified and facilitated and consequently cheapened.

What I desire to claim is 1. A changeable die member for use in an embossing press and comprising a lower die plate adapted to be fixed in said press, and an upper coacting die plate mounted on and attached to said lower die plate, and, when in said press held out of contact with said lower die plate when the press is open but brought into embossing contact with said lower die plate when said press is closed.

2. In combination with a press provided with a bed and a ram, a changeable die for said press and comprising a lower die plate adapted to be removably mounted on said bed and an upper die plate connected to said lower die plate, but unattached to the ram and adapted to be forced down against the same by said ram.

3. In combination with a press provided with a bed and a ram, a changeable die for said press and comprising a lower die plate adapted to be removably mounted on said bed and an upper die plate connected to said lower die plate, but unattached to the ram and adapted to be forced down against the same by said-ram, and resilient means for raising said upper die plate when said ram is elevated.

at. In combination with a press provided with a bed and a ram, a changeable die for said press comprising a lower die plate adapted to be removably mounted on said bed and an upper die plate connected to said lower die plate, but unattached to the ram and adapted to be forced down against the same by said ram, and means mounted on said bed and engaging said second die plate to raise the same when said ram is elevated.

55. In combination with a press provided with a ram and a bed, said bed being provided with a stud, a changeable die for said press comprising a lower die plate provided with a hole adapted to engage said stud and an upper die plate in hinged attachment to said lower die plate, said upper die plate being unattached to said ram, and adapted to be forced down on said lower die plate by the descending ram.

6. In combination with a press provided with a ram and a bed, said bed being provided with a stud, a changeable die for said press comprising a lower die plate provided with a hole adapted to engage said stud and an upper die plate in hinged attachment to said lower die plate and adapted to be forced down on said lower die plate by the descendmg ram, said upper die plate being unattached to said ram, and resilient means for raising said upper die plate when said ram is elevated.

7 In combination With a press provided With a ram and a bed, said bed being provided With a stud, a changeable die for said press comprising a lower die plate provided With 7 a hole adapted to engage said stud and an upper die plate in hinged attachment to said lower die plate and adapted to be forced down against'the same by the descending ram, said upper die plate being.

unattached to said ram, and means mounted 15 JAMES H. MATTHEWS 'Witne'sses:

E. E. CUsTARD, H. W. LAUDERMILCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. p 

